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Re:好不容易过了,虽然我想的思路挺简单,只调用四次函数,但还是不熟悉,看来最好别乱修改地址In Reply To:好不容易过了,虽然我想的思路挺简单,只调用四次函数,但还是不熟悉,看来最好别乱修改地址 Posted by:A99999999999 at 2006-03-13 18:28:09 我的程序运行时间为1015MS,就超出了15MS的时间,请你帮一下忙,把我的程序的时间减少
#include<iostream>
using namespace std;
int max(int a,int b)
{
if(a>=b)
return a;
else
return b;
}
int main()
{
int n;int sum1=0,sum2=0,s;int T;
cin>>T;
for(int l=1;l<=T;l++)
{
cin>>n;
int *a=new int [n];
for(int i=0;i<n;i++)
{
cin>>a[i];
}
for(int s1=0;s1<=n-2;s1++)
for(int t1=s1;t1<=n-2;t1++)
for(int s2=t1+1;s2<=n-1;s2++)
for(int t2=s2;t2<=n-1;t2++)
{
for(int ii=s1;ii<=t1;ii++)
{
sum1+=a[ii];
}
for(int jj=s2;jj<=t2;jj++)
{
sum2+=a[jj];
}
if(s1==0&&t1==0&&s2==1&&t2==1){s=sum1+sum2;sum1=0;sum2=0;}
else
{s=max(sum1+sum2,s);sum1=0;sum2=0;}
}
cout<<s<<endl;
}
return 0;
}
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